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Finding the Fourth Proportional to 144,088.70, 198,841.91 and 80,425.94

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Solution

The fourth proportional to 144,088.70, 198,841.91 and 80,425.94 is: 110,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,088.70 : 198,841.91 = 80,425.94 : x
  2. Step 2: Convert to fraction form
    144,088.70/198,841.91 = 80,425.94/x
  3. Step 3: Cross multiply
    144,088.70x = 198,841.91 × 80,425.94
  4. Step 4: Simplify right side
    144,088.70x = 15,992,046,126.81
  5. Step 5: Solve for x
    x = 15,992,046,126.81/144,088.70
  6. Step 6: Final answer
    x = 110,987.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.